Yu Xiaofei is a plumber who scrapes away the scale layer by layer in the courtyard spring stone basin. She broke up seven years ago due to the obstruction of Shen Yan's mother. In late autumn, she received a maintenance order and met the courtyard landscaper Shen Yan again - the black bluestone spring basin was an old thing she had scraped. Scale is the trace left by running water, and estrangement is the scar left by love. She had to scrape off the stubborn scale in layers, but she could never scrape through the old wounds in her heart. The four seasons cycle, and the changes in water temperature make the hardness of scale vary, making cleaning twice as difficult; groundwater minerals quickly recalcify, and freshly scraped basin surfaces are covered with white frost. The water outlet is clogged, the glaze is scratched, the inscription is exposed... Every craft conflict is an explosion of emotional undercurrents. She tried to scrape it all off and start over, only to find that the scars were always on the next layer. The scale can be scraped off repeatedly, and the scars in her heart cannot be completely smoothed away - but she has learned to coexist with it, like a stone basin that carries water marks and continues to flow.
